Privacy Preserving Data Classification using Inner-product Functional Encryption

Damien Ligier, Sergiu Carpov, Caroline Fontaine, Renaud Sirdey

2017

Abstract

In the context of data outsourcing more and more concerns raise about the privacy of user’s data. Simultaneously, cryptographers are designing schemes enabling computation on ciphertexts (homomorphic encryption, functional encryption, etc.). Their use in real world applications is difficult. In this work we focus on functional encryption schemes enabling computation of inner-product on encrypted vectors and their use in real world scenarios. We propose a protocol combining such type of functional encryption schemes with machine learning algorithms. Indeed, we think that being able to perform classification over encrypted data is useful in many scenarios, in particular when the owners of the data are not ready to share it. After explaining our protocol, we detail the implemented handwritten digit recognition use case, and then, we study its security.

Paper Citation

in Harvard Style

Ligier D., Carpov S., Fontaine C. and Sirdey R. (2017). Privacy Preserving Data Classification using Inner-product Functional Encryption . In Proceedings of the 3rd International Conference on Information Systems Security and Privacy - Volume 1: ICISSP, ISBN 978-989-758-209-7, pages 423-430. DOI: 10.5220/0006206704230430

in Bibtex Style

@conference{icissp17,
author={Damien Ligier and Sergiu Carpov and Caroline Fontaine and Renaud Sirdey},
title={Privacy Preserving Data Classification using Inner-product Functional Encryption},
booktitle={Proceedings of the 3rd International Conference on Information Systems Security and Privacy - Volume 1: ICISSP,},
year={2017},
pages={423-430},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0006206704230430},
isbn={978-989-758-209-7},
}

in EndNote Style

TY - CONF
JO - Proceedings of the 3rd International Conference on Information Systems Security and Privacy - Volume 1: ICISSP,
TI - Privacy Preserving Data Classification using Inner-product Functional Encryption
SN - 978-989-758-209-7
AU - Ligier D.
AU - Carpov S.
AU - Fontaine C.
AU - Sirdey R.
PY - 2017
SP - 423
EP - 430
DO - 10.5220/0006206704230430